... WP321, WP347, WP347HDIN: ST37.00, ST35.8, ST45.8, S235JR, P235GH, P265GH, 10CrMo910,15CrMo, 12Cr1moVJIS: JIS G3454, STPG370, STPG410SEAMLESS FITTINGS ... price, punctual delivery and guaranteed quality.Qingdao Kum Kang Fittings Co., Ltd. was established in 2007, invested by Kum ... Carbon Steel, Stainless Steel & Alloyed Steel Butt-Welding Fittings and Flanges including Elbows,Tees We have strong R & ...